Allow EntityDatabase to be accessed by phone

telethon/telegram_client.py

@@ -1,7 +1,5 @@
 import os
-import re
 from datetime import datetime, timedelta
-from functools import lru_cache
 from mimetypes import guess_type
 
 try:
@@ -17,6 +15,7 @@ from .errors import (
 )
 from .network import ConnectionMode
 from .tl import TLObject
+from .tl.entity_database import EntityDatabase
 from .tl.functions.account import (
     GetPasswordRequest
 )
@@ -127,7 +126,7 @@ class TelegramClient(TelegramBareClient):
 
     def send_code_request(self, phone):
         """Sends a code request to the specified phone number"""
-        phone = self._parse_phone(phone)
+        phone = EntityDatabase.parse_phone(phone) or self._phone
         result = self(SendCodeRequest(phone, self.api_id, self.api_hash))
         self._phone = phone
         self._phone_code_hash = result.phone_code_hash
@@ -160,7 +159,7 @@ class TelegramClient(TelegramBareClient):
         if phone and not code:
             return self.send_code_request(phone)
         elif code:
-            phone = self._parse_phone(phone)
+            phone = EntityDatabase.parse_phone(phone) or self._phone
             phone_code_hash = phone_code_hash or self._phone_code_hash
             if not phone:
                 raise ValueError(
@@ -897,23 +896,14 @@ class TelegramClient(TelegramBareClient):
         """Gets an entity from the given string, which may be a phone or
            an username, and processes all the found entities on the session.
         """
-        stripped_phone = self._parse_phone(string, ignore_saved=True)
-        if stripped_phone.isdigit():
-            contacts = self(GetContactsRequest(0))
-            self.session.process_entities(contacts)
-            try:
-                return next(
-                    u for u in contacts.users
-                    if u.phone and u.phone.endswith(stripped_phone)
-                )
-            except StopIteration:
-                raise ValueError(
-                    'Could not find user with phone {}, '
-                    'add them to your contacts first'.format(string)
-                )
+        phone = EntityDatabase.parse_phone(string)
+        if phone:
+            entity = phone
+            self.session.process_entities(self(GetContactsRequest(0)))
         else:
             entity = string.strip('@').lower()
             self.session.process_entities(self(ResolveUsernameRequest(entity)))
+
         try:
             return self.session.entities[entity]
         except KeyError:
@@ -921,17 +911,6 @@ class TelegramClient(TelegramBareClient):
                 'Could not find user with username {}'.format(entity)
             )
 
-    def _parse_phone(self, phone, ignore_saved=False):
-        if isinstance(phone, int):
-            phone = str(phone)
-        elif phone:
-            phone = re.sub(r'[+()\s-]', '', phone)
-
-        if ignore_saved:
-            return phone
-        else:
-            return phone or self._phone
-
     def get_input_entity(self, peer):
         """Gets the input entity given its PeerUser, PeerChat, PeerChannel.
            If no Peer class is used, peer is assumed to be the integer ID
@@ -940,7 +919,7 @@ class TelegramClient(TelegramBareClient):
            If this Peer hasn't been seen before by the library, all dialogs
            will loaded, and their entities saved to the session file.
 
-           If even after
+           If even after it's not found, a ValueError is raised.
         """
         try:
             # First try to get the entity from cache, otherwise figure it out

telethon/tl/entity_database.py

@@ -1,5 +1,7 @@
 from threading import Lock
 
+import re
+
 from .. import utils
 from ..tl import TLObject
 from ..tl.types import User, Chat, Channel
@@ -19,6 +21,7 @@ class EntityDatabase:
 
         # TODO Allow disabling some extra mappings
         self._username_id = {}  # username: marked_id
+        self._phone_id = {}  # phone: marked_id
 
     def process(self, tlobject):
         """Processes all the found entities on the given TLObject,
@@ -87,19 +90,27 @@ class EntityDatabase:
             old_entity = self._entities[marked_id]
             old_entity.__dict__.update(entity.__dict__)  # Keep old references
 
-            # Update must delete old username
+            # Update must delete old username and phone
             username = getattr(old_entity, 'username', None)
             if username:
                 del self._username_id[username.lower()]
+
+            phone = getattr(old_entity, 'phone', None)
+            if phone:
+                del self._phone_id[phone]
         except KeyError:
             # Add new entity
             self._entities[marked_id] = entity
 
-        # Always update username if any
+        # Always update username or phone if any
         username = getattr(entity, 'username', None)
         if username:
             self._username_id[username.lower()] = marked_id
 
+        phone = getattr(entity, 'phone', None)
+        if phone:
+            self._username_id[phone] = marked_id
+
     def __getitem__(self, key):
         """Accepts a digit only string as phone number,
            otherwise it's treated as an username.
@@ -113,9 +124,11 @@ class EntityDatabase:
            Note that megagroups are channels with .megagroup = True.
         """
         if isinstance(key, str):
-            # TODO Parse phone properly, currently only usernames
+            phone = EntityDatabase.parse_phone(key)
+            if phone:
+                return self._phone_id[phone]
+            else:
                 key = key.lstrip('@').lower()
-            # TODO Use the client to return from username if not found
                 return self._entities[self._username_id[key]]
 
         if isinstance(key, int):
@@ -140,6 +153,16 @@ class EntityDatabase:
 
     # TODO Allow search by name by tokenizing the input and return a list
 
+    @staticmethod
+    def parse_phone(phone):
+        """Parses the given phone, or returns None if it's invalid"""
+        if isinstance(phone, int):
+            return str(phone)
+        else:
+            phone = re.sub(r'[+()\s-]', '', str(phone))
+            if phone.isdigit():
+                return phone
+
     def get_input_entity(self, peer):
         try:
             return self._input_entities[utils.get_peer_id(peer, add_mark=True)]